Culvert.



C. .F. ALT.

GULVERT. APPLICATION FILED AUG. 13, 1908.

Patented Apr. 20, :moa

vill/1114?]A CHARLES FRANKLIN ALT, UF WARREN, PENNSYLl/ ANLL CULVERT.

T o all whomit may concern-.-

Be it known that I, CHARLES F, ALT, a citizen. ofthe United States,residing at VVai-ren, in the county of Narren and State of Pennsylvania,have invented. certain new l and useful Improvements in Culve rts, ofwhich the following is a specification, reference being had to theaccompanying drawings.

This invention relates to improvements in metal culverts for use beneathroadways and for analogous pur oses..

'l`he object of t ie invention is to provide a galvanized metal culvertwhich will be simple, strong and durable in construction, comparativelyinexpensive to produce and to construct and exceedingly' durable andeffective in use.

With the above and other objects in View, the invention consists of thenovel features of construction and the combination and arrangement ofparts hereinafter' fully described and claimed, and illustrated in theaccompanyingr drawings, in which-- Figure 1 is a vertical cross sectionthrough a culvert constructed in accordance With t e invention; Fig. 2is a view artly in side elevation and partly in vertica section taken onthe plane indicated by the line :3f-2 in Fig. 1; and Fig. 3 is a detailtransverse section through a slightly modified forni of the invention.

The improved culvert is formed from aV plurality of arch-shaped bodysections 1L of corrugated galvanized metal arranged with their ad'acentends overlapping and with their si e ed es resting upon flat metalstringers 2. he body sections 1 are substantially semi-circular shapedin cross section and they are `formed with transverse corrugations 3which effectivelyV strengthen them. The endmost corrugation of eachsection overlaps the corresponding corrugation of the next adjacentsection, as shown at 4, but in order to more effectively reinforce thejoint one or more metal straps 4 may be secured by bolts, rivets orsimilar fastenin s 4b to the top or exterior surfaces of said en s of'the sections, as clearly shown in Fig. 2.

The connecting or oint plate 4a is shaped to lit the two body sectionsand overla s the l)oint or scam, thereby greatlvstrengt lening thelatter. The edges of thel body sectionsv 1 are effectively secured tothe base formed by the stringers 2, by means` of suitable clips andbolts, rivets or similar fastenings. VSaid clips are here shown in theform of angle Specification of Letters Patent. g Application filedAugust 13, 1908. Serial No. 448,399.

'It will also be seen that owing to the shape Patented April 20, 1909.

nietal plates 5 arranged in staggered relation on both the inner andouter faces of the sections and securedto the latter and also to thestringers` by bolts 6. Instead of the angle clips or plates 5 I mayemploy angle metal bars to unite the body sections to the stringers.These anvle metal bars would extend continuously from end `to end of theculvert and would greatlystrengthen and reinforce the saine. 'l`hestringers extend longitudinally. throughout the length of the culvertand their abutting ends are united by a joint )late 7 arranged beneaththein and secure by certain of the bolts 6, as clearly shown in Fig. 2.

The stringers 2 may be merely ilat plates, as shown in Fig. 3, so thatthe bottom of the culvert will be formed b the earth upon or Withinwhich it is located, but they are preferably made of angular sha )e incross section, as shown in Fig. 1, so t at the edges of the bodysections may be secured to their horizontal portions or flanges 8 andtheir inwardly or downwardly projecting anges 9 may be secured by boltsor similar fastenings 10 to metal bottom' sections 11. These stringersections may be llat or curved transversely, as shown in Fig. 1, andthey may also be either plain or corrugated. 'Vlie fas tening bolts 10pass through the bottom seetions 11 and the flan fes 9 of the stringersbut it Will be understoo that clips or other fastening'means ma besubstituted and that any other fastenmgmeans other than the angle plates5 may be employed for uniting the corrugated body sections to thestringersl or base. A

From the foregoing it will 'be seen that the invention l provides anexceedingly' simple culvert, the parts of which may be produced at asmall cost and quickly and easily put together. It will be further notedthat it will be exceedingly strong, rigid and durable.

of the several parts of theI culvert it may ie shipped to the pointwhere it is to be used in knocked down condition with its parts nestedor bundled and bolted together. ilaving thus described the inventionwhat is claimed is:

l. A metal culvert comprising metal stringers, arch-shaped body sectionshaving their edges resting upon said stringers and right angular metalclips. arranged u pon both the inner and outer faces of said bodysections and each having one member vsecured to one of seid bodysections and its other member secured to one of seid stringers.

2. A metal culvert comprising stringers, srch-shaped body sectionscorrugated trans- 1 versely end having their ends overlapping' and theiredges resting upon er1-1d stringere,

and :ingle metal clips uniting seid sections to l the stringere.

3. A inetel culvert comprising' metal stringere, arch-shaped bodysections having their edges resting upon seid stringers and fasteningmeans uniting said sec-tions to the stringere.

4, A metal vculvert comprising metal stringers, arch-shaped bodysections corrugated trensverselyend having their edges resting upon seid4stringors end their ends overlapping, and angle metal plates unitingthe body sections to the strin ers and arranged upon both the inner anouter feces of said body sections.

5. A metal culvert comprisingistringers,

arch-sh eped body sections having their edges said stringere.

7. A metal culvert comprising nietnl strinv'ers, arch-shaped bodysections corru- Tated transversel f und heviinr their ends overlappingand their edges resting upon the stringere, joint plates extending overthe joints and. united to the overlapping sections and fastenings thestrngers.

In testimony whereof I hereunto nflix my signature in the presence oftwo Witnesses. CHARLES FRANKLIN All".

Witnesses:

NELLiE B.' Siu'rn, E. H. BnsHLIN.

uniting the body sections to

